Yes. Check to see if the wire rating printed on the outside covering of the wire in question. Most 12AWG wire is rated for 20 amps. Wire insulation is rated 300, 600 and 1000 volts.

In case you are having trouble with the math for calculating amps x volts (120, 240V etc) = watts, watts divided by volts = amps

Code will let you load up a conductor up to 80%. Full load on a

12 wire is 16 amps.

12 Gauge copper can be used for 20A or less